GPU comparison
Rubin CPX vs Vera Rubin: specs and rental prices
NVIDIA Rubin CPX against NVIDIA Vera Rubin (Rubin GPU): 128 GB against 288 GB of memory. Specs from NVIDIA, prices as of Oct 29, 2026.
In short
- The Vera Rubin lists 288 GB of GPU memory against 128 GB for the Rubin CPX: 2.25× higher.
- Memory type is GDDR7 on the Rubin CPX and HBM4 on the Vera Rubin.
- Not every figure can be compared: at least one vendor page does not publish: Memory bandwidth; FP8 tensor throughput; FP16 / BF16 tensor throughput; TF32 tensor throughput; FP64 throughput; Maximum power; GPU-to-GPU interconnect.
- Neither GPU has a fresh on-demand rental listing right now.
This summary is generated from the tables below. Prices were last checked Oct 29, 2026. A listing not re-checked for 7 days is greyed and left out of every lowest-price figure; after 14 days it is removed from the page.
Specifications side by side
| Specification | Rubin CPX | Vera Rubin Rubin GPU | Difference |
|---|---|---|---|
| GPU memory | 128 GB | 288 GB | Vera Rubin 2.25× higher |
| Memory type | GDDR7 | HBM4 | Different |
| Memory bandwidth | Not published | 19,200 GB/s | — |
| FP8 tensor throughput | Not published | 17,500 TFLOPS (dense) | — |
| FP16 / BF16 tensor throughput | Not published | 4,000 TFLOPS (dense) | — |
| TF32 tensor throughput | Not published | 2,000 TFLOPS (dense) | — |
| FP64 throughput | Not published | 33 TFLOPS | — |
| GPU-to-GPU interconnect | Not published | 3,000 GB/s | — |
Compared versions: Rubin CPX and Vera Rubin Rubin GPU. The figure in the stronger cell is shaded; power is shown without a winner. Two throughput figures are compared only when both vendors state them on the same basis (both with sparsity, or both dense), and “derived” means a total the vendor publishes divided by the GPU count it publishes. Full tables with sources: Rubin CPX specifications · Vera Rubin specifications.
Rental prices
| Rental price | Rubin CPX | Vera Rubin | Difference |
|---|---|---|---|
| Lowest listed on-demand price | No fresh listing | No fresh listing | — |
| Lowest listed spot price | No fresh listing | No fresh listing | — |
| Price per GB of memory | Not available | Not available | — |
| Fresh listings | 0 from 0 providers | 0 from 0 providers | — |
Prices cover every version and instance size the providers list, so they are not tied to the versions compared above; the price per GB of memory divides the lowest fresh on-demand price by the memory of the compared version. Listed prices are not like for like across providers. See every listing: Rubin CPX prices · Vera Rubin prices.
More on these GPUs
Cite this page
Last updated Oct 29, 2026. Figures may change as records are updated — include the date you retrieved them.
| APA | Data Center Census. (2026). Rubin CPX vs Vera Rubin. Retrieved from https://datacentercensus.com/gpu-prices/compare/rubin-cpx-vs-vera-rubin |
|---|---|
| MLA | “Rubin CPX vs Vera Rubin.” Data Center Census, Oct 29, 2026, https://datacentercensus.com/gpu-prices/compare/rubin-cpx-vs-vera-rubin. |
| Link | https://datacentercensus.com/gpu-prices/compare/rubin-cpx-vs-vera-rubin |
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